#2E51C8
Closest named color: Blue Blue (#2242C7). oklch(48.5% 0.189 266.6), rgb(46, 81, 200).
Aa
White text reads best on this color (6.71:1).
About this color
#2E51C8 is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.189 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.038 away. White text reads best on it, at 6.71:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.189) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 3.12:1 |
| White text | 6.71:1 |
Values
| HEX | #2E51C8 |
| RGB | rgb(46, 81, 200) |
| HSL | hsl(226, 63%, 48%) |
| OKLCH | oklch(48.5% 0.189 266.6) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #2E51C8 | 6.71:1 | AA | Lc -87.6 | Fine for body text |
| Black text on #2E51C8 | 3.12:1 | AA large text | Lc 21.5 | Dividers and decoration only |
| #2E51C8 text on white | 6.71:1 | AA | Lc 82.5 | Fine for body text |
| #2E51C8 text on black | 3.12:1 | AA large text | Lc -19.4 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 700.
-
Step 50
50
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E2EAFC
oklch(93.6% 0.026 266.6)
-
Step 200
200
#CAD9FC
oklch(88.5% 0.051 267)
-
Step 300
300
#A5C0FD
oklch(81% 0.092 265.9)
-
Step 400
400
#769CFC
oklch(70.7% 0.147 266.4)
-
Step 500
500
#5580F9
oklch(63.2% 0.187 266.4)
-
Step 600
600
#3D65E8
oklch(55.6% 0.203 266.7)
-
Step 700
700 (this color)
#2E51C8
oklch(48.5% 0.189 266.6)
-
Step 800
800
#2745A3
oklch(42.7% 0.156 266.3)
-
Step 900
900
#243B81
oklch(37.7% 0.122 266.8)
-
Step 950
950
#15234C
oklch(27% 0.078 266.9)
#2E51C8 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #0063CC | 0.045 |
| Deuteranopia (no green cones) | #0055C6 | 0.024 |
| Tritanopia (no blue cones) | #006F84 | 0.149 |
| Achromatopsia (no color) | #5C5C5C | 0.190 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2E51C8
#2E51C8
oklch(48.5% 0.189 266.6)
- #775A00
#775A00
oklch(48.4% 0.099 86.7)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #2E51C8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.038
- Warm Blue #4B57DB ΔE 0.049
- Majorelle Blue #3F37C9 ΔE 0.054
- Blue With A Hint Of Purple #533CC6 ΔE 0.059
- Azul #1D5DEC ΔE 0.062
- Blurple #5539CC ΔE 0.064
- Iris #6258C4 ΔE 0.072
- Bluey Purple #6241C7 ΔE 0.073
Use #2E51C8 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.